CN201416578Y - Compound oil cylinder - Google Patents
Compound oil cylinder Download PDFInfo
- Publication number
- CN201416578Y CN201416578Y CN2009201206769U CN200920120676U CN201416578Y CN 201416578 Y CN201416578 Y CN 201416578Y CN 2009201206769 U CN2009201206769 U CN 2009201206769U CN 200920120676 U CN200920120676 U CN 200920120676U CN 201416578 Y CN201416578 Y CN 201416578Y
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- CN
- China
- Prior art keywords
- piston rod
- piston
- bonnet
- small
- oil cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a compound oil cylinder for a filter press, and aims to solve the technical problem of effectively shortening the length of the oil cylinder and improving the work adaptability of equipment on the premise that the working stroke is fixed. The compound oil cylinder is characterized in that a piston rod (5) is a hollow tube with a vent hole (5-1); a small piston (6)-small piston rod (7) component is arranged in the tube; the small piston rod (7) is a hollow tube with a small hole (7-1); one end of the small piston rod is sealed and the other end passes through a piston (4) and is fixed with a rear cover (2) to form an oil inlet/outlet; an oil seal structure is arranged at the contact part of the piston (4) and the small piston rod (7); a boss is formed in the middle of the piston (4), and forms a rodless cavity (16) with the rear cover through contact; an exhaust bolt (14) is arranged at the upper part of the rodless cavity (16) in the oil cylinder body (3);a pressure gauge (15) is in parallel connection with the exhaust bolt (14); and the outlet of the small hole (7-1) is on a step shaft.
Description
Technical field
The utility model relates to a kind of hydraulic jack, specifically is a kind of pressure filter complex oil cylinder.
Background technique
The oil cylinder of prior art has the cylinder body 3 ' of a band protecgulum 1 ' and bonnet 2 ', piston 4 '-piston rod 5 ' assembly is arranged in the cylinder body 3 ', one end of piston rod is top 10 ', screw thread is arranged outside the piston rod 5 ', be rotary with locking screw spare 8 ' on it with 9 ' handle, the turnover oilhole is arranged on the bonnet 2 ', see Fig. 1.It has the long deficiency of length of oil cylinder.
Summary of the invention
The utility model technical issues that need to address are under the certain prerequisite of working stroke, effectively to shorten the length of oil cylinder, the labor aptitude of raising equipment.
Complex oil cylinder of the present utility model has the cylinder body of a band protecgulum and bonnet, piston-piston rod assembly is arranged in the cylinder body, piston rod has screw thread outward, be rotary with locking screw spare on it, the turnover oilhole is arranged on the bonnet, it is characterized in that the hollow tube of described piston rod for the band vent, small piston-small piston rod assembly is arranged in the pipe, small piston rod is the hollow tube that has aperture, the sealing of small piston rod one end, the other end passes piston and bonnet is fixed as oil inlet and outlet, and piston and small piston rod contact segment are provided with oil seal structure; There are boss, boss to contact in the middle of the described piston and form rodless cavity with bonnet; Rodless cavity top in the cylinder body is provided with bleeder screw, and bleeder screw is parallel with pressure gauge; The outlet of aperture is positioned on the step axle.Because adopt the built-in small piston of piston rod-small piston rod assembly, the length of oil cylinder can shorten greatly.
As preferably, be fixed with back shroud on the bonnet, be fixed with free flow coupling and union elbow on the back shroud, be communicated with turnover oilhole and oil inlet and outlet on the bonnet respectively.
If make anti-explosion motor and flame-proof switch into, just there are not other electrical apparatus element, therefore be specially adapted to explosive gas places such as coal gas.
The utility model is skillfully constructed, and the length with oil cylinder is short, and characteristics such as operate steadily.
Description of drawings
Fig. 1 is a kind of structural representation of prior art oil cylinder;
Among the figure: 1 '-protecgulum, 2 '-bonnet, 3 '-cylinder body, 4 '-piston, 5 '-piston rod, 8 '-locking screw spare, 9 '-handle, 10 '-top.
Fig. 2 is a kind of structural representation of the present utility model;
Among the figure: 1-protecgulum, 2-bonnet, 3-cylinder body, 4-piston, 5-piston rod, 6-small piston, the 7-small piston rod, 8-locking screw spare, 9-handle, 10-top, 11-back shroud, 12-free flow coupling, the 13-union elbow, 14-bleeder screw, 15-pressure gauge, 16-rodless cavity, 17-cutting ferrule, 18-nut.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Embodiment.See Fig. 2, the complex oil cylinder that this is routine has a cylinder body 3 of being with protecgulum 1 and bonnet 2; Rodless cavity 16 tops of oil cylinder are communicated with bleeder screw 14, are parallel with pressure gauge 15.Piston 4-piston rod 5 assemblies are arranged in the cylinder body 3, and wherein piston rod 5 is the hollow screwed pipe of band vent 5-1, and an end stretches out outside protecgulum 1 and to come directly towards 10 sealings, is rotary with the locking screw spare 8 of band handle 9 on the screwed pipe; The other end and piston 4 are fixing, in the middle of the piston 4 boss are arranged, and make and form rodless cavity 16 between piston 4 and the bonnet.Small piston 6-small piston rod 7 assemblies are arranged in the hollow screwed pipe, small piston rod 7 is for having the hollow tube of aperture 7-1, hollow tube one end is with nut 18 sealings, and the other end passes piston 4 and is fixed as oil inlet and outlet with bonnet 2, and piston 4 has oil seal structure (two oil sealings) with small piston rod 7 contact segments.Back shroud 11 by screw on bonnet 2, between accompany cutting ferrule 17.Be fixed with free flow coupling 12 on the back shroud 11, communicate, also be fixed with union elbow 13 and small piston rod 7 tube chambers and be communicated with turnover oilhole 2-1 on the bonnet 2.
When needs piston 4-piston rod 5 assemblies ejected, hydraulic oil entered the rodless cavity 16 of cylinder body 3 from free flow coupling 12, and piston 4-piston rod 5 assemblies promptly are pushed; Because it is motionless that small piston 6-small piston rod 7 assemblies are fixed on the bonnet 2, so at the same time, the hydraulic oil in the small oil tank between piston rod 5 and the small piston rod 7 then flows back to fuel tank by small piston rod 7 inner chamber aperture 7-1 and union elbow 13.After hydraulic pressure compresses, screw and become mechanical pressurize with the locking screw spare 8 of band handle 9, so impacting force is constant reliable, this moment, hydraulic system was no longer worked, thereby the power and energy saving.The vent 5-1 of piston rod 5 is for the barometric pressure inside and outside the equalizing piston bar 5, is obstructed when avoiding the motion of piston 4-piston rod 5 assemblies.
When needs piston 4-piston rod 5 assemblies bounced back, hydraulic oil entered small piston rod 7 tube chambers from union elbow 13, saw through when aperture 7-1 enters in the small oil tank to be pushed; Because small piston 6-small piston rod 7 assemblies are fixed, so simultaneously, the hydraulic oil in the large tank then flows back to fuel tank from free flow coupling 12.
Claims (3)
1, a kind of complex oil cylinder, the cylinder body (3) that a band protecgulum (1) and bonnet (2) are arranged, piston (4)-piston rod (5) assembly is arranged in the cylinder body (3), screw thread is arranged outside the piston rod (5), be rotary with locking screw spare (8) on it, turnover oilhole (2-1) is arranged on the bonnet (2), it is characterized in that the hollow tube of described piston rod (5) for band vent (5-1), small piston (6)-small piston rod (7) assembly is arranged in the pipe, small piston rod (7) is for having the hollow tube of aperture (7-1), the sealing of small piston rod one end, the other end passes piston (4) and is fixed as oil inlet and outlet with bonnet (2), and piston (4) is provided with oil seal structure with small piston rod (7) contact segment; There are boss, boss to contact in the middle of the described piston (4) and form rodless cavity (16) with bonnet; Rodless cavity (16) top in the cylinder body (3) is provided with bleeder screw (14), and bleeder screw (14) is parallel with pressure gauge (15); The outlet of aperture (7-1) is positioned on the step axle.
2, complex oil cylinder according to claim 1, it is characterized in that being fixed with on the described bonnet (2) back shroud (11), be fixed with free flow coupling (12) and union elbow (13) on the back shroud (11), be communicated with turnover oilhole (2-1) and oil inlet and outlet on the bonnet (2) respectively.
3, complex oil cylinder according to claim 1 and 2 is characterized in that handle (9) is arranged on the described locking element (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201206769U CN201416578Y (en) | 2009-05-22 | 2009-05-22 | Compound oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201206769U CN201416578Y (en) | 2009-05-22 | 2009-05-22 | Compound oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416578Y true CN201416578Y (en) | 2010-03-03 |
Family
ID=41792995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201206769U Expired - Fee Related CN201416578Y (en) | 2009-05-22 | 2009-05-22 | Compound oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416578Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116985175A (en) * | 2023-09-25 | 2023-11-03 | 湖南伊米森科技有限公司 | High-precision pneumatic multi-finger automatic centering manipulator |
-
2009
- 2009-05-22 CN CN2009201206769U patent/CN201416578Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116985175A (en) * | 2023-09-25 | 2023-11-03 | 湖南伊米森科技有限公司 | High-precision pneumatic multi-finger automatic centering manipulator |
| CN116985175B (en) * | 2023-09-25 | 2024-01-02 | 湖南伊米森科技有限公司 | High-precision pneumatic multi-finger automatic centering manipulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20180522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |